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High-frequency amplifier circuit with negative impedance cancellation

  • US 6,417,734 B1
  • Filed: 06/26/2000
  • Issued: 07/09/2002
  • Est. Priority Date: 06/26/2000
  • Status: Expired due to Term
First Claim
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1. A high-frequency amplifier circuit comprising an amplifying transistor and a driver transistor, the amplifying transistor being connected in one of a common emitter and a common source configuration and the driver transistor being connected in a corresponding one of a common collector and a common drain configuration, a current-mirror bias circuit connected directly to a common terminal and coupled between an input terminal of said driver transistor and an output terminal of said driver transistor, and a resistor connected directly in series with an input terminal of said current mirror for directly connecting said current mirror to said input terminal of said driver transistor through said resistor.

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